I had my D800 at the office today because my friend claimed his Sigma 50mm 1.4 was not focusing on his D5100. I did some lens swapping, corrected some dirty contacts and all was well.

Then I grabbed a few quick shots with the D800 and the Nikon 50mm 1.8G wide open, targeted the eye and WHAMO half of the shots were front/back focused. This was under a mix of office/fluorescent lights. Of course this is the sort of issue many have reported, especially at 1.4 or 1.8.

Then I logged into these forums and spotted the FW update. I had no expectation for an improvement, but I updated the camera anyway.

Under the exact same lighting I shot again and WHAMO, focus was NAILED every time. I'm going to do more tests, but I really tried to get the AF to miss and it did not.

I'm CAUTIOUSLY optimistic! The 85mm 1.4 and 1.8 will be tried next...two lenses that really gave me fits on this camera. I'll report back.

Robert

I also noticed a significant improvement on all points from the outer left to right, each one nailed it with AFS 85mm 1.4, happy bunny.

It seems more responsive in focusing and locks on accurately with less hunting.

AF doesn't get a mention, else lose some face and vindicate everyone who has had problems.

To be honest this was also the case with D700, after first firmware update all issues resolved and a solid camera from there on.

It's perfect timing for me as wedding season starting soon.

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Joewww.pbase.com/joedwww.jofoto.co.ukA Wedding Photographer A People Person

But AF DID get a mention. Have a look at their site. They are only admitting to AF-C improvements which I find "queer".